1213242220110 has 64 divisors (see below), whose sum is σ = 3163905054720. Its totient is φ = 296616090240.

The previous prime is 1213242220087. The next prime is 1213242220111. The reversal of 1213242220110 is 110222423121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213242220111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34312897 + ... + 34348236.

It is an arithmetic number, because the mean of its divisors is an integer number (49436016480).

Almost surely, 2^{1213242220110} is an apocalyptic number.

1213242220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213242220110 is an abundant number, since it is smaller than the sum of its proper divisors (1950662834610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213242220110 is a wasteful number, since it uses less digits than its factorization.

1213242220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68661193.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1213242220110 its reverse (110222423121), we get a palindrome (1323464643231).

The spelling of 1213242220110 in words is "one trillion, two hundred thirteen billion, two hundred forty-two million, two hundred twenty thousand, one hundred ten".